Explain how to use the vertical line test to test to see if a graph represents a function.

Explain how to use the vertical line test to test to see if a graph represents a function.

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  1. Answer:

    To use the vertical line test, take a ruler or other straight edge and draw a line parallel to the y-axis for any chosen value of x. If the vertical line you drew intersects the graph more than once for any value of x then the graph is not the graph of a function.

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    Hope it helps you

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